<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>盒子模型</title>
		<style type="text/css">
			#div1{
				width: 800px;
				height: 800px;
				background-color: #0000FF;
				border:6px solid #00FFFF;
				margin: 200px auto;
				padding: 80px;
			}
			#div2{
				width: 500px;
				height: 500px;
				background-color: brown;
				border: 6px solid bisque;
				margin: 40px;
				
			}
		</style>
	</head>
	<body>
		<div id="div1">
		
		<div id="div2"></div>
	</body>
</html>